IntersectorFuncConst.h

//===========================================================================
// GoTools - SINTEF Geometry Tools
//
// GoTools module: Intersections, version 1.0
//
// Copyright (C) 2000-2007 SINTEF ICT, Applied Mathematics, Norway.
//
// This program is free software; you can redistribute it and/or          
// modify it under the terms of the GNU General Public License            
// as published by the Free Software Foundation version 2 of the License. 
//
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          
// GNU General Public License for more details.                           
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// SINTEF ICT, Department of Applied Mathematics,                         
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//===========================================================================
#ifndef _INTERSECTORFUNCOBJ_H
#define _INTERSECTORFUNCOBJ_H


#include "Intersector.h"


namespace Go {



class ParamFunctionInt;



class IntersectorFuncConst : public Intersector {
public:

    IntersectorFuncConst(boost::shared_ptr<ParamFunctionInt> func,
                         boost::shared_ptr<ParamFunctionInt> C,
                         boost::shared_ptr<GeoTol> epsge,
                         Intersector* prev = 0,
                         int eliminated_parameter = -1,
                         double eliminated_value = 0);

    virtual ~IntersectorFuncConst();

//     // Validation of given intersection results
//     virtual void validate(int level, ValidationStat status);  @bsp

    friend class IntersectorAlgPar;

protected:

    boost::shared_ptr<ParamFunctionInt> func_int_;
    boost::shared_ptr<ParamFunctionInt> C_;

    // @@sbr Currently we need intersection between a
    // Param1FunctionInt & ParamPointInt.  Possibly introduce
    // additional object (replacing ParamPointInt) in this branch of
    // the tree.  NB: The order of the objects ot input is not
    // arbitrary!  The knowledge of what is the 'first object' and the
    // 'second object' can be used internally, and must be consistent
    // with the parent Intersector.  The second object could be a
    // ParamPointInt or Param1FunctionInt.
    virtual void print_objs();

    virtual boost::shared_ptr<Intersector>
    lowerOrderIntersector(boost::shared_ptr<ParamFunctionInt> obj1,
                          boost::shared_ptr<ParamFunctionInt> obj2,
                          Intersector* prev = 0,
                          int eliminated_parameter = -1,
                          double eliminated_value = 0) = 0;

    virtual int getBoundaryIntersections();

    virtual int performInterception();

    virtual int simpleCase();

    virtual bool isLinear();

    virtual bool complexityReduced()
    {
        // Default behaviour, continue recursion
        return true;
    }

    virtual void handleComplexity()
    {
        // Default, do nothing. Must be implemented together with
        // complexityReduced
    }

    virtual int checkCoincidence() = 0;

    virtual void microCase() = 0;
    
    virtual int updateIntersections() = 0;

    virtual int linearCase();

    virtual int doSubdivide() = 0;

    virtual void printDebugInfo();

private:

};


} // namespace Go


#endif // _INTERSECTORFUNCOBJ_H

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